Adsorption properties of ionic species on cross-linked chitosans modified with catechol and salicylic acid moieties

Anal Sci. 2008 May;24(5):665-8. doi: 10.2116/analsci.24.665.

Abstract

Catechol-type chitosan resin and salicylic acid-type chitosan resin were easily synthesized for use in estimating the adsorption behavior of 34 elements at pH 1 - 7 in aquatic media. The catechol-type chitosan resin could adsorb Cu(II) at pH 3 - 7, In(III) at pH 4 - 6, Pb(II) and lanthanoids at pH 5 - 7, and U(VI) at pH 4 - 7 more effectively than the salicylic acid-type chitosan resin and the cross-linked chitosan resin (base material). Adsorption ability was in the order: catechol-type chitosan resin > salicylic acid-type chitosan resin > cross-linked chitosan resin.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adsorption
  • Catechols / chemistry*
  • Chitosan / analysis*
  • Chitosan / chemistry*
  • Cross-Linking Reagents / chemistry*
  • Hydrogen-Ion Concentration
  • Ions / chemistry
  • Mass Spectrometry
  • Molecular Structure
  • Salicylic Acid / chemistry*

Substances

  • Catechols
  • Cross-Linking Reagents
  • Ions
  • Chitosan
  • catechol
  • Salicylic Acid